Improvement in sash-holders



G. W. CLARK. V SASH-HOLDER.

No. 192,231, Patented Jun19,1877.

UNITED STATES Prtuzerrr OFF CE.

GEORGE \V. CLARK, OF WHEELING, WEST VIRGINIA, ASSIGNOR OF ONE-HALF HIS RIGHT TO JOHN FLADING,OF SAME PLACE.

IMPROVEMENT IN SASH-HOLDERS.

Specification forming part of Letters Patent No. 192,231, dated June 19, 1877; application filed May 16, 1877.

To all whom it may concern:

Be it known that I, GEORGE \V. CLARK, of the city of Wheeling, county of Ohio, State of \Vest Virginia, have invented certain new and useful Improvements in Sash-Holders; and I hereby declare the following to be a full, clear, and explicit description of the same, reference beinghad to the accompanying drawings, formmg part of this specification.

The object of my invention is to sustain or hold window-sash in any vertical position in the frame it may be desired; and to this end my invention consists of a leather-faced rubber cam of peculiar shape, which is inclosed in a metallic case or pocket having inclined ends and adjustable face-plates, the case mortised in the-edge of the sash-stile, with the face-plates flush with the outside edge of the sash.

In its operation the leather-faced cam holds the sash in position by frictional contact with the side of the window-frame, the degree of contact being regulated by an adjustable slidepiece in the face of the case, by means of which the cam is advanced or set back, as required, all as hereinafter more fully described and I claimed.

In order that those who are versed in the art to which my invention appertains may make and use the same, I will now proceed to more fully explain its construction and mode of operation, reference being had to the accompanying drawings, in which-- Figure 1 is a perspective view of the device detached from the sash. Fig. 2 is a vertical central section; Fig. 3, a front view.

In the drawings,.the letter A design ates the; metalllc case, constructed with parallel sides and lncllned ends 0 c, the lower end having an.

offset or recess, f, for the receival of the end of a spring-piece forming part of the leathcrr faced rubber cam. Bis a movable face-plate,

pivoted to an end projection of the case A,

made removable for thejpurpose of admitting the cam in its positionlin the case. 0 is an ad ustable face-plate toregnlate the frictional contact of the cam. 01 d are wood-screws to secure the case in frameof sash, the screw cl serving as a set-screw to regulate the slideplate 0. The letter B represents a 1eathermay also hem t :a hard or sell hardened thatit assembles j'leath last or wear; M fl theretbrmdono sl "fining jmyself s rietlyito leatherfaced roller or cam, having a flat rectangular spring-piece, b, of suitable length, extending from the sideof the cam, of which it forms an integral part. This spring-piece b fits in the recessfin the end of the case A, and is held in position by the plate 13. The cam E is constructed with a wooden or metal core, H, to strengthen the cam and prevent it flattening when inoperation. I) is a portion of a sash; F, the window-frame.

By means of the elastic spring-piece b the. cam E is made self-adjustable to the space between the sash and frame, and the binding power of the cam is regulated by means of the slide-piece (3, which prevents the cam from rolling farther up the inclined end e, and holds it firmly in position when the weight of the sash is on the cam. The binding power can be so accurately adjusted by means of this slide-piece that the sash will be held stationary in any position it may be desired, and only require a slight pressure of the hand to lower the same- The cam can bemade entirely ofindia-rubher; but the binding-surface, when made of this material, becomes rough by the friction,

and causes a jerking motion when moving the sash, and therefore I deem it best to face the india-rubber cam with leather, secured to the same with glue, or by sewing or riveting in a durable manner, the advantage of the leather being that it does not wear rough on the hinding-surface like rubben and will permit the sash to slide smoothly without jerking when force is appliedto operatethe same. The cam leof rubber, in one piece, with center and soft periphery; and itinay be thatrubber can ,beQ-so'formed or although Ipret h'aveused. r

In'ap'plyi'n; j M A V wt as, I mortise one in the sash-stilenea the meetingrail, and one near the bottomrail, bothlion one side of the sash, the object of so placingythem being to keep the sash frame always parallel with the jamb of the window-frame, whereby these to, all on;

more satisiactory results are obtained than where the sash binds on one corner, as is invariably the case where only one holding device is used. The case is secured to the sash with ordinary wood-screws in each end of the face-plate, the top screw serving in place of a set-screw to hold the adjustable slide-piece.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s-

1. In a sash-holder, the leather-faced'rnbber cam E,'having an elongation or spring-piece, b, and either with or without a metalor. wooden core, H, substantially as herein shown,'and v i for the purpose set forth.

2. In a sash-holder, the leather-faced indiarubber cain E, metallic case A, adjustable slide-plate O, and pivoted face-plate B, substantially as herein shown, and for the purpose sct forth.

3. The combination, in a sash-holder, of case A a, cam E, spring-piece b, adj nstable plate 0, pivoted plate B, and set-screw d, all constructed and arranged substantially as described, for the purpose set forth and shown.

GEORGE W. CLARK.

Witnesses:

CY. BATES HOWARD, WM. ERsKINE. 

